81174513

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{54443}}^1$

素因数の和:54524

約数の個数: 16

約数和(自身を含む): 125438976

約数和(自身を除く): 44264463

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 54443, 163329, 381101, 1143303, 3865453, 11596359, 27058171, 81174513]

約数ペア:

[(1, 81174513), (3, 27058171), (7, 11596359), (21, 3865453), (71, 1143303), (213, 381101), (497, 163329), (1491, 54443)]